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Profile Number 41

Laboratory number: 0969A study of the land in the Catchment of Gippsland Lakes - Vol 2 - Soil profile 41Profile Description
Site number:487All 0 - 4 cmVery dark brown (10YR 2/2) organic clay loam; weak very fine (5 mm) subangular blocky structure; rough-ped fabric; slightly hard when dry; abundant roots; pH 5.5; abrupt boundary
Classification:Northcote (1979) - Gn3.93
Stace et al. (1972) – Wiesenboden
Al2 4 - 12 cmVery dark grey (10YR 3/1) loamy clay; weak fine (10 mm) subangular blocky structure; rough-ped fabric; hard when dry; abundant roots; pH 6.0; clear boundary
Location:Sale 8321, grid ref. 365908
4 km SE of Meerlieu, between Lakes Wellington and Victoria
B21 12 - 25 cmVery dark greyish brown (10YR 3/2) medium clay; moderate fine (10 mm) angular blocky structure; rough-ped fabric; very firm when moist; common faint brown mottles (5 - 15 mm); abundant roots; pH 6.5; clear boundary
Land system, component: Clydebank, 3B22 25 - 80 cmYellowish brown (10YR 5/4) heavy clay; common distinct yellowish brown mottles (5 - 15 mm); moderate medium (20 mm) angular blocky structure; smooth-ped fabric; very firm when moist; few roots to 60 cm; some water-worn quartz gravel between 10 and 30 mm; pH 8.5; clear boundary
Topography:Young marine plain, 1% slopeCI80 - 110 cmLight grey (10YR 7/2) clay loam; common distinct yellowish brown mottles (>15 mm); moderate angular blocky structure; smooth-ped fabric; firm when moist; 3% calcareous nodules (up to 20 mm) increasing to 7% at depth; pH 8.5; gradual boundary
Elevation:10 mC2110 - 120+ cmGreyish brown (10YR 5/2) clay loam; few distinct yellowish brown mottles (5 - 15 mm); probably blocky structure; rough-ped fabric; firm when moist; 2% calcareous nodules up to 20 mm; pH 8.5
Drainage:Poor
Parent material:Holocene clays, silts, sands and gravels
Vegetation:Cleared; grassland with Phalaris aquatica and Bromus p.
LABORATORY ANALYSES 969
Horizon
Sample
Depth

cm
Lab.
texture
Particle size distribution
Atterberg limits
1:5 soil water suspension
Clay mineralogy by x-ray diffraction
Gravel

%
Coarse
sand
% f.e.
fine sand

% f.e.
Silt

% f.e.
Clay

% f.e.
liquid
limit
%
plastic
limit
%
plasticity
index
%
linear
shrinkage
%
pH
EC
25C
uS/cm
Cl-

%
Depth

cm
Composition

%
All
0 - 4
C
8
2
21
13
51
5.7
180
0.015
30 - 60
mica 60;
Kaolinite 25;
illite 15
Al2
4 - 10
C
5
13
25
14
45
5.9
110
0.003
B21
12 - 20
CL
17
4
30
25
38
6.8
140
0.010
B22
30 - 60
C
11
7
32
13
51
73
20
53
18
8.3
1200
0.16
Cl
90 - 110
C
41
4
38
15
45
9.3
2200
0.28
Horizon
Sample
Depth

cm
Org. C


%
Total N


%
1.3C
N
Free
Fe2O3

%
Available
HCl extract
Exchangeable cations
P
ppm
K
ppm
P
%
K
%
Ca
Mg
K
Na
CEC
Ca
% of CEC
Mg
K
Na
H
Milliequivalents/100g
All
0 - 4
7.7
0.57
18
0.7
29
640
0.039
0.35
4.3
4.5
1.7
1.2
35.6
12
13
5
3
67
Al2
4 - 10
3.0
0.27
14
0.7
11
300
0.021
0.34
2.8
3.2
0.9
1.1
24.8
11
13
4
4
68
B21
12 - 20
1.5
0.14
14
1.1
4
220
0.013
0.39
4.1
6.8
0.7
2.5
22.7
18
30
3
11
38
B22
30 - 60
1.7
0.008
0.58
4.2
11.4
1.0
7.9
28.2
15
40
4
28
13
C
90 - 110
0.4
0.006
0.41
4.8
9.2
0.7
7.7
22.4
22
41
3
34
0
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